Disk drill.



. No. 745,655 l PATENTED DC. l, 1903.

F. R. PAGKHAM.

DISK DRILL.

APPLICATION FILED SEPT. 14, 1903,

N0 MODEL. n' 2 SHEETS-SHEET l.

JM fj Tu: mams warms co, moro-Lumen. wnmcron. oA c No. 745,665. PATENTED DEU. l, 1903. F. R..PACKHAM.

DISK DRILL.

APPLIOATIUN FILED SEPT. 14, 1903.

2 SHEETS-SHEET 2.

N0 MODEL.

UNiTED e STATES y Fatented ecernber 1, 1903.

PATENT Orr-ion.

FRANK R. PACKHAM, OF SPRINGFIELD, OHIO, ASSIGNOR TO AMERICAN SEEDING MACHINE COMPANY, OF JERSEY CITY, NEW JERSEY, A OOR- PORATION OF NEW JERSEY.

DISK DRILL.'

.SPECIFICATION forming-,part of Letters Patent No. 745,655, dated December '1, 1903. l

.application -led September 14,'1903. Serial No. 173,089. o model.) l

have invented certain new and useful Im.

provements in Disk Drills, of which the following is a specification.

My invention relates to improvements in disk drills, and more particularly to drills employing twin disks or double disks as furrow-openers; and my improvements relate particularly to thefurroW-opening devices.

My object is to provide an improved disk support andcondnit adapted for use in combination with twin disks or double disks that will be practically dust-proof for the bearings of the disk and so arranged that the grain conducted through the'grain-condnit will be delivered into the completed furrow, and thereby avoid the danger of delivering the* seed so that it is only partly placed in the bottom of the completed furrow.

I am aware that in prior devices the grain is directed to the furrow between the twin or double disks; butin these devices there is danger of the grain striking upon the converging edges of lthe revolving disks, and thereby failing to be delivered in the bottom of the trench. If the grain is delivered in front of the Aaxial center of. the disk, even though conducted with closed tubes to the furrow, there is danger of the seed not reach-V ing the bottom of the furrow, but mingling with the soil as it surges through the opening below the one point of contact of the disks, it being obvious that the disks can only closely contact at one point in the front and that below this point or to the rear of it there is an opening through which the soil or dirt can pass. Y

A further object is to provide an improved form of bearing with no projections on the exterior sides of the disks, together with means for readily locking the spindles on which the-disks bear to their respective bearings, with means for. readily adjusting the position of the disks.

In the drawings, Figure l is a side elevation of one of the disks with the disksupport partly in section. Fig. Z is a transverse section thron gh the twin disks and the support, taken on the line a: :r of Fig. l. detail of the bearing or support for the disk, part sectional. Fig. 4 is a detail of the bearing, showing the inclined discharge-opening therein. Figs. 5, 6, and 7 are detail views of the oil-conduit. Fig. 8 is a detail View of the seed-conduit.

Like parts are represented by similar characters of reference in the several views.

' The bearing or support for the disks a. is indicated by the letter b. There are formed in this bearing or support openings b', Fig. l, and within these openings the spindles h2, Fig. 3, of the disks are adapted to fit. As shown in Fig. 3, these spindles extend inwardly from the concave side of the'disk, andsame are riveted on the convex side in such manner that there is no opening or aperture through the disk for dust or other substances to penetrate. The spindles?)2 for the twin disks are formed at their inner ends with grooves b3, and the spindles are shown slightly separated at their` inner ends, so as to allow forV adjustment for taking up the end movement of the disks in the manner hereinafter described. The spindles fit closely within lthe openings formed in the bearing or support b, and by reason of the arrangement of the spindles with reference to the disks and the bearings I have formed a bearing which is absolutely dust-proof.

The disk-'spindles are shown at dierent anl gles to line of draft and to the vertical. There is formed integrally with'said support an upwardly -extending sleeve b, Fig. 3, which sleeve entends beyond the periphery of the disks, as shown in Fig. 1. Within thissleeve or spout there is placed au oil-conduit b5 of peculiar formation. At its lower end the oil- Fig. 3 is a conduit b5 isformed with projecting lugs bs,

branches or channels are so directed that thel oil or grease will drop upon the ends of the spindles b2, as indicated in Fig. 3, and be forced into channels b1", formed in the bearing or support b, above the spindles b2, where it will be in a position to at all times keep said spindles properly lubricated. At its upper end the oil-conduit is screw-threaded, as indicated in Fig. 2, and has a cap b9, which is adapted to be filled with hard oil, lard, or some other form of lubrication. This screwcap fits upon the upper end of the spindle, and the oil, lard, or other substance may be forced to the journals by revolving the screwcap, which engages the threaded portion of the upper end of the oil-conduit.

I have shown in Fig. 2 a set-screw buhwhich is adapted to hold the oil-conduit b5 in its proper position. By loosening the set-screw and forcing the oil-conduit downwardly I can change theadjustmcnt o f the spindles and by tighteningv the set-screw retain same in their adjusted position.

I have shown in Fig. 7 the oil-conduit b5 as formed with a lug b, and this lug extends outwardly and is adapted to fit within a notch blz, formed in the sleeve or spout b4 of the bearing. By this arrangement I provide means for properly assembling the parts, as by reason of the different angles of the disks and their spindles and the lugs h6, which fit in the grooves formed in said spindles, said lugs must always be properly seated in said grooves.

The bearing or support b is formed with a discharge opening of peculiar form. As shown in Fig. l, this discharge-opening is curved and extends from a point above the axial center of the disk and back of same to a pointalmost below the axial center of the disk. The outer side bm of this dischargeopening formed in the bearing is curved in such a manner as to deiiect the seed to a point back of a line drawn vertically through the axial center of the disk, as shown in Fig. l. My purpose in thisformation is to enable the seed to be delivered to the dischargeopeningat a point in front of the axial center of the disk and to be defiected through the discharge-opening in a manner to insure its being delivered to the furrow at a point in the rear of a line or vertical plane through the axes of the disks or in the finished part of the furrow, all that part of the furrow in front of said line being in an unfinished condition. It will readily be understood that the disks converge in front of their axes and that if the seed is delivered in front thereof there will be great danger of it striking the converging inner faces of the disks and falling in the unfinished part of the furrow and that this danger is entirely obviated when the seed is deflected toward the rear of the disks; but in double-disk constructions prior to my invention, where the grain is conveyed down to the furrow by a discharge-opening in the rear of the axial center of the disks, great diniculty is experienced from the fact that mud and sticky soils coming in between the disks will be carried by reason of the rotation of the disks to the discharge-opening for the seed, which will then be clogged or obstructed, preventing the proper discharge of the grain or seed. By my arrangement the discharge end of the conduit is located in front of a plane or line drawn through the axis or center of the disk and is iu a protected position and yet directs the grain to the rear of said plane or line, avoiding the danger of obstructing mud or other substances carried by the disk and delivering the grain to the furrow at a point in the rear of a plane drawn vertically through the axis of the disk. The outer wall Z714 being curved, as shown in Fig. l, is adapted to deflect mud and other substances, and the rotation of the disks in a downward direction tends to carry the mud away from the discharge-opening.

I have shown a grain-spout c with a projecting plate or finger c at its lower end which is adapted to tit within an enlarged opening c2, formed in the bearing b. The seed-spout, as shown in Fig. 1, can readily be detached by moving it out of normal position until the plate or finger c' can be withdrawn from the enlarged opening c2, and yet while the spout is held in its normal upright position by the tube c3 same cannot be detached, but is held in engagement with the bearing Ab, and the tube c3, the spout c, and the discharge-opening Z113 form a closed conduit for the seed from the hopper of the machine, to which the spoutc3 is attached in the usual manner. I have also shown connections to the sleeve or spout for the oil-conduit for the pressure-rods and their springs, and thereby presenta complete furrow-opening device of the twin or double disk type of novel and useful construction.

The drag-bar d is attached to the bearing by a rivet or bolt d', as shown in Fig. l.

It will be seen that there are no hub projections on the exterior of the disk, and the spindles are attached to the bearings without any obstructions being in the space between the disks, such as bolts or hub extensions. The bearings are thus completely protected from dirt, the only possible point where dirt could work into the bearing being when the disks bear against the support b, and at this point the dirt Will be prevented from entering by reason of the fact that the lubricant after entering the channels in said support will be forced into any intervening space that may occur between said disks and the support, and thus exclude the dirt.

Having thus described my invention, I claim- 1. In a disk drill, the combination of a support, a feed-conduit adapted to fit within said support, and a discharge-opening through said support with the lower end adapted to deflect the seed to the rear of the support.

2. In a disk drill, the combination of double'disks with a support and a seed-conduit adapted to fit within the support, a dischargeopening formed in said support and located in front of the axial center of the disks but curved rearwardly and adapted to deflect the seed entering in said discharge-openings in front of the axial center to a point below and in the rear of the axial center, for the purpose specilied.

3. In a double-disk drill, the combination of double disks with asupport, openings formed in said support and spindles attached to said disks extending inwardly and adapted to fit within the openings formed in said support, means for holding said spindles within said support and further adapted to adjust same without the use of bolts or other analogous devices, for the purpose specified.

4. 'In a double-disk drill, the combination of the disks with the support, openings formed in said support, spindles on said disks adapted to t within said openings,ran oil-conduit also fitted Within-said support and adapted at its lower end to engage the inner ends of said spindles, for the purpose speciled. l

5. Inadouble-diskdrill,the combination of the disks with the support, openings formed in said support, spindles on said disks adapted to fit within said openings, an oil-conduit also fitted within said support formed at its lower end with inclined faces adapted to envgage the inner ends of said spindles, for the purpose specified.

6. In a double-disk drill, the combination of the disks with the support, openings formed in said support, spindles on said disks adapted to fit within said openings, an oil-conduit also fitted within said support formed at its lower end with inclined faces adapted to engage the inner ends of said spindles, inclined faces formed on the inner ends of said spindles with whichthe inclined faces on the lower end of tho oil-conduit engage, for the purpose specified.

'7. In adouble-disk drill, the combination of the disks with the support, openings formed in said support, spindles on said disks adapted to it within said openings, an oil-conduit also fitted within said support formed at its lower end with inclined faces adapted to engage the inner ends of said spindles, an oilcap for holding the lubricating medium, and channels connecting said oil-conduit with the inner end of said spindles, for the purpose specified.

8. In a double-disk drill, the combination of the disks with the support, openings formed in said support, spindles on said disks adapted to fit within said openings, an oil-conduit also fitted within said support formed at its lower end with inclined faces adapted to engage the inner ends of said spindles, means for holding the oil-Conduit in adjusted position for locking the spindles within the support.

Y 9. In adouble'disk drill, the combination of the disks with the support, openings formed in said support, spindles on said disks adapted to fit within said openings, an oil-conduit also fitted within said support formed at its lower end with inclined faces adapted to-engage the inner ends of said spindles, and a set-screw adapted to hold the oil-conduit ,in adjusted position for locking the spindles, for the purpose specified.

10. In adisk drill, the combination of double disks with the support, a sleeve formed integrally with said support and extending upward toward the periphery of the disks, an oil-conduit adapted to fit within said sleeve, spindles formed on said disks adapted to t within the support, projecting lugs on the lower end of the oil-conduit adapted to engage the inner ends of said spindles, and means for adjusting the oil-conduit within the sleeve, and a holding device for locking same in adjusted position, for the purpose of locking said spindles within said support.

ll. In a disk drill,the combination of double disks with the support, a discharge-opening formed within said support located in front of the axial center of the disk and curved in a manner to deflect the seed toward the rear of the axial center, a seed-conduit also adapted to fit within said support, a projecting lug on said conduit and openings in said support within which said lug fits but adapted to be released therefrom by the movement of said conduit out of its normal position.`

In testimony whereof I have hereunto set my hand this 10th day of September, A. D.

FRANK 'R. PACKHAM.

IOO 

